mp SCIENTIFIC INVESTIGATION EXERCISE 1. You want to investigate which material (newspaper, plastic or towels) traps heat the best. You wrap a container with hot water in each of these materials, and measure the temperature of the water over fixed time intervals. Your experiment looks as follows: Water Beaker Material that you are testing Bigger container (a) Write an investigative question. (b) Formulate a hypothesis. (c) Name any two other apparatus needed to perform this investigation. (d) Identify the following variables: dependent, independent, controlled.